Thanks for alerting us, and our apologies for not responding to your question. Can you provide the URL for your site so we can investigate from our end? Also, which version of WordPress are you using, as well as which theme?
The embed code works in virtually every instance and with any CMS, so there should not be any ‘trick’ needed.
Please send the above information to support@icopyright.com or to me directly at chip@icopyright.com. Thanks.